如果您在Windows 11/10/8/7磁盘管理工具^{(Disk Management Tool)}中发现扩展卷选项灰^{(Extend Volume option is grayed out)}显或禁用，那么这篇文章将解释为什么会发生这种情况以及您可以采取哪些措施。我们可以使用内置的磁盘管理工具^{(Disk Management Tool)}或Diskpart 或 Fsutil^{(Diskpart or Fsutil)}命令行工具来创建、调整大小、扩展和删除分区。但是，如果“扩展^(Extend)卷”选项灰显或“扩展^(Extend)”命令失败怎么办？

Windows操作系统允许您扩展任何卷，只要其右侧有可用或未分配空间。如果没有未分配的空间，则不会为您提供此选项，并且将显示为灰色。

为什么扩展^(Extend)音量选项显示为灰色？

这些可能是扩展^(Extend)音量选项灰显的可能原因。如果您的硬盘驱动器上没有未分配的空间，则可能会发生这种情况。此外，如果您要扩展的分区后面没有连续的未分配空间或可用空间。最后，Windows不能扩展FAT或其他格式的分区。

如何修复“扩展^(Extend)音量”选项灰显？

如果需要扩展卷，则需要删除右侧的分区，即要扩展的分区后面的分区，并创建未分配的空间。

如果您要扩展的是您的数据驱动器，那么有一种解决方法。假设^(Say)您有一个系统驱动器 - C^{(System Drive – C)}和一个数据驱动器 - D。您想要扩展 D 驱动器，但该选项显示为灰色。您可以做的是收缩系统驱动器^{(System Drive)}以创建未分配的空间，该空间将位于左侧。用这个未分配的空间创建一个新卷。然后将您的数据从 D 盘移动到这个新卷。完成此操作后，删除D 驱动器^{(D Drive)}，然后您将能够扩展新驱动器，因为现在其右侧将有未分配的空间。

如果要扩展的是 C 盘或系统^{(System Drive)}盘，请将 D 盘或数据盘中的所有数据复制到外部驱动器或^(Drive)USB。然后删除D卷。现在您将能够扩展 C 卷。利用您想要的空间，然后使用剩余的未分配空间创建一个新卷并将其命名为 D。现在将您的数据从外部驱动器传输回 D 驱动器。

正如TechNet^(TechNet)所提到的，关于扩展卷的几点需要注意：

1. 分区必须具有关联的卷，然后才能对其进行扩展。
2. 对于基本卷，未分配的空间必须在同一个磁盘上，并且它必须跟随您要扩展的分区。也就是说，它必须出现在磁盘^(Disk)管理的右侧。
3. 动态简单或跨区卷可以扩展到任何动态磁盘上的任何空白空间。
4. 如果分区之前使用NTFS格式化，文件系统会自动扩展以填充更大的分区，并且不会发生数据丢失。
5. 如果分区之前使用NTFS以外的文件系统格式化，则扩展^(Extend)命令可能会失败。
6. 如果该分区之前没有使用文件系统格式化，则该分区将被扩展。

为什么在Windows 11/10中禁用扩展卷？

当您看到计算机上的“扩展^(Extend)卷”选项灰显时，表示您的硬盘上没有未分配的空间。由于 C 分区驱动器后面没有未分配的空间，所以“扩展^(Extend)卷”选项被禁用。在这种情况下，你可以做的是，先释放一些空间，然后你可以扩展你的分区。

有一些免费的分区管理器软件^{(free Partition Manager software)}可以帮助您更轻松地删除、合并和扩展卷。你可能想看看它们。

提示：如果“^(TIP)删除卷”选项呈灰色显示，^{(Delete Volume option is greyed out)}请参阅此帖子。

Extend Volume option is grayed out or disabled in Windows 11/10

If you fіnd that the Extend Volume option is grayed out or disabled in Disk Management Tool in Windows 11/10/8/7, then this post will explain why this happens & what you can do about it. We can use the built-in Disk Management Tool or the Diskpart or Fsutil command-line tools to create, resize, extend, and delete partitions. But what if the Extend Volume option is grayed out or the Extend command fails?

The Windows operating system lets you extend any volume provided there is free or unallocated space on its right side. If there is no unallocated space, you will not be offered this option and it will appear grayed out.

Why is the Extend volume option grayed out?

These could be the possible reasons for Extend volume option grayed out. This could occur if there is no unallocated space on your hard drive. Also, if there is no contiguous unallocated space or free space behind the partition that you want to extend. Lastly, Windows can’t extend is a FAT or other format partition.

How do I fix Extend volume option grayed out?

If you need to extend the volume, you will need to delete the partition on the right side, i.e., behind the partition you want to extend and create unallocated space.

If it is your Data Drive that you want to extend, then there is a workaround. Say you have a System Drive – C and a data drive – D. You want to extend D drive, but the option is grayed out. What you can do is Shrink the System Drive to create unallocated space, which will be on the left side. Create a new volume with this unallocated space. Then move your data from the D drive to this new volume. Having done this, delete D Drive and then you will be able to extend the new drive since there will be unallocated space now on its right side.

If it is your C or System Drive that you want to extend, copy all your data from your D or data Drive to an external drive or USB. Then delete the D volume. Now you will be able to extend C Volume. Utilize the space you want to, and then with the remaining unallocated space create a new volume and name it D. Now transfer your data back to the D drive from the external drive.

A few points to note about extending volumes, as mentioned by TechNet:

1. The partition must have an associated volume before it can be extended.
2. For basic volumes, the unallocated space must be on the same disk and it must follow the partition which you want to extend. That is, it must appear on the right side in Disk management.
3. A dynamic simple or spanned volume can be extended to any empty space on any dynamic disk.
4. If the partition was previously formatted with NTFS, the file system is automatically extended to fill the larger partition, and no data loss will occur.
5. If the partition was previously formatted with a file system other than NTFS, the Extend command might fail.
6. If the partition was not previously formatted with a file system, the partition would be extended.

Why is Extend volume disabled in Windows 11/10?

When you see the Extend Volume option grayed out on your computer, it signifies that there is no unallocated space on your hard disk. As there is no unallocated space after the C partition drive, so “Extend Volume” option is disabled. In this situation what you can do is, free up some space first, then you can extend your partitions.

There are some free Partition Manager software that can help make the job of deleting, merging, and extending volumes easier. You might want to take a look at them.

TIP: See this post if the Delete Volume option is greyed out.

Related posts

• 如何在Windows 11/10中删除Volume or Drive Partition

• 如何检查Disk是否在Windows 10中使用GPT or MBR Partition

• 如何使用Windows 10交换硬盘驱动器，Hot Swap

• 如何在Windows 10修复Disk Signature Collision problem

• Make Disk Cleanup Tool删除Windows10中的所有临时文件

• 最佳硬Drive encryption软件Windows 10

• 如何使用WMIC检查Windows 10中的Hard Disk Health

• USB drive or SD card在Windows 10上的Fix未分配Space error

• Best免费Timetable software为Windows 11/10

• Best免费ISO Mounter software的Windows 10

• 启用Network Connections而在Modern Standby上Windows 10

• 如何在Windows 10备份，Move，Move，或Delete PageFile.sys关闭

• 如何在Windows 10 Control Panel中打开System Properties

• Windows 10 Disk Management不工作，装载或响应

• 如何在 Windows 11 中对硬盘驱动器进行分区

• 在 Windows 10 中检查磁盘是否使用 MBR 或 GPT 分区的 3 种方法

• 如何禁用Storage Sense在Windows 10

• Best Free Partition Manager software为Windows 10

• Stop Hard Drive从Windows 11/10睡觉

• 如何在Windows 10计算机中更改默认Webcam